New Rice for Africa (NERICA) cultivars exhibit different levels of post-attachment resistance against the parasitic weeds Striga hermonthica and Striga asiatica

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cg.contributor.affiliationUniversity of Sheffielden
cg.contributor.affiliationAfrica Rice Centeren
cg.contributor.affiliationUniversity of Birminghamen
cg.contributor.donorBiotechnology and Biological Sciences Research Council, United Kingdomen
cg.contributor.donorDepartment for International Development, United Kingdomen
cg.identifier.doihttps://doi.org/10.1111/j.1469-8137.2011.03846.xen
cg.isijournalISI Journalen
cg.issn1469-8137en
cg.issue4en
cg.journalNew Phytologisten
cg.volume192en
dc.contributor.authorCissoko, M.en
dc.contributor.authorBoisnard, A.en
dc.contributor.authorRodenburg, J.en
dc.contributor.authorPress, M.C.en
dc.contributor.authorScholes, J.D.en
dc.date.accessioned2022-07-20T06:45:26Zen
dc.date.available2022-07-20T06:45:26Zen
dc.identifier.urihttps://hdl.handle.net/10568/120185
dc.titleNew Rice for Africa (NERICA) cultivars exhibit different levels of post-attachment resistance against the parasitic weeds Striga hermonthica and Striga asiaticaen
dcterms.abstractStriga hermonthica and S. asiatica are root parasitic weeds that infect the major cereal crops of sub-Saharan Africa causing severe losses in yield. The interspecific upland NEw RICe for Africa (NERICA) cultivars are popular amongst subsistence farmers, but little is known about their post-attachment resistance against Striga. Here, we evaluate the post-attachment resistance levels of the NERICA cultivars and their parents against ecotypes of S. hermonthica and S.asiatica, characterize the phenotype of the resistance mechanisms and determine the effect of Striga on host biomass. Some NERICA cultivars showed good broad-spectrum resistance against several Striga ecotypes, whereas others showed intermediate resistance or were very susceptible. The phenotype of a resistant interaction was often characterized by an inability of the parasite to penetrate the endodermis. Moreover, some parasites formed only a few connections to the host xylem, grew slowly and remained small. The most resistant NERICA cultivars were least damaged by Striga, although even a small number of parasites caused a reduction in above-ground host biomass. The elucidation of the molecular genetic basis of the resistance mechanisms and tolerance would allow the development of cultivars with multiple, durable resistance for use in farmers' fields.en
dcterms.accessRightsOpen Accessen
dcterms.available2011-08-29en
dcterms.bibliographicCitationCissoko, M. Boisnard, A. Rodenburg, J. Press, M.C. Scholes, J.D. New Rice for Africa (NERICA) cultivars exhibit different levels of post-attachment resistance against the parasitic weeds Striga hermonthica and Striga asiatica. New Phytologist. 2011, Volume 192, Issue 4: 952-963.en
dcterms.extentp. 952-963en
dcterms.issued2011-12en
dcterms.languageenen
dcterms.licenseCopyrighted; all rights reserveden
dcterms.publisherWileyen
dcterms.subjectoryza glaberrimaen
dcterms.subjectoryza sativaen
dcterms.subjectstrigaen
dcterms.subjecttoleranceen
dcterms.subjectvarietiesen
dcterms.typeJournal Articleen

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